Control select does not work to move multiple waypoints.

#### Issue details
Control select does not work to move multiple waypoints in flight planner screen of Mission Planner.
See this video:
https://www.youtube.com/watch?v=QEvNhmKsQ0U

#### Version
1.3.58

#### Platform
[ ] All
[ ] AntennaTracker
[ ] Copter
[X ] Plane
[ ] Rover
[ ] Sub

#### Airframe type
Fixed wing

#### Hardware type
Windows 8

#### Logs
_Please provide a link to any relevant logs that show the issue_

Reproduce the issue in Mission Planner's flight planner on Plane with the video as the behavioral reference. Trace the waypoint-selection and movement entry points; done means Control-selecting multiple waypoints allows them to be moved together.

Written by the indexing model from the issue text.